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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qplatformaccessibility.h"
#include <private/qfactoryloader_p.h>
#include "qaccessibleplugin.h"
#include "qaccessibleobject.h"
#include "qaccessiblebridge.h"
#include <QtGui/QGuiApplication>
#include <QDebug>
QT_BEGIN_NAMESPACE
#ifndef QT_NO_ACCESSIBILITY
/* accessiblebridge plugin discovery stuff */
Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, bridgeloader,
(QAccessibleBridgeFactoryInterface_iid, QLatin1String("/accessiblebridge")))
Q_GLOBAL_STATIC(QVector<QAccessibleBridge *>, bridges)
/*!
\class QPlatformAccessibility
\since 5.0
\internal
\preliminary
\ingroup qpa
\ingroup accessibility
\brief The QPlatformAccessibility class is the base class for
integrating accessibility backends
\sa QAccessible
*/
QPlatformAccessibility::QPlatformAccessibility()
: m_active(false)
{
}
QPlatformAccessibility::~QPlatformAccessibility()
{
}
void QPlatformAccessibility::notifyAccessibilityUpdate(QAccessibleEvent *event)
{
initialize();
if (!bridges() || bridges()->isEmpty())
return;
for (int i = 0; i < bridges()->count(); ++i)
bridges()->at(i)->notifyAccessibilityUpdate(event);
}
void QPlatformAccessibility::setRootObject(QObject *o)
{
initialize();
if (bridges()->isEmpty())
return;
if (!o)
return;
for (int i = 0; i < bridges()->count(); ++i) {
QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(o);
bridges()->at(i)->setRootObject(iface);
}
}
void QPlatformAccessibility::initialize()
{
static bool isInit = false;
if (isInit)
return;
isInit = true; // ### not atomic
typedef QMultiMap<int, QString> PluginKeyMap;
typedef PluginKeyMap::const_iterator PluginKeyMapConstIterator;
const PluginKeyMap keyMap = bridgeloader()->keyMap();
QAccessibleBridgePlugin *factory = nullptr;
int i = -1;
const PluginKeyMapConstIterator cend = keyMap.constEnd();
for (PluginKeyMapConstIterator it = keyMap.constBegin(); it != cend; ++it) {
if (it.key() != i) {
i = it.key();
factory = qobject_cast<QAccessibleBridgePlugin*>(bridgeloader()->instance(i));
}
if (factory)
if (QAccessibleBridge *bridge = factory->create(it.value()))
bridges()->append(bridge);
}
}
void QPlatformAccessibility::cleanup()
{
qDeleteAll(*bridges());
}
void QPlatformAccessibility::setActive(bool active)
{
m_active = active;
QAccessible::setActive(active);
}
#endif // QT_NO_ACCESSIBILITY
QT_END_NAMESPACE
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